Ti-modified NiAl-Cr(Mo) polyphase eutectic intermetallic compound

A new type of intermetallic compound and crystal technology, which is applied in the field of Ti-modified NiAl-Cr multi-phase eutectic new structure intermetallic compound, can solve the problem of low strength at high temperature and achieve good mechanical properties
CN1970805AInactive Publication Date: 2007-05-30BEIHANG UNIV
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Patent Information

Authority / Receiving Office
CN · China
Current Assignee / Owner
BEIHANG UNIV
Publication Date
2007-05-30
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention discloses a new-typed structure metal compound of Fe modified NiAl-Cr (Mo) polyphase eutectic crystal, which comprises the following parts: 33at% Ni,30at% Cr,4at% Mo,3-17at% Fe and Al, wherein the NiAl-Cr (Mo) polyphase alloy is modified by Fe, which induces plastic third phase gamma-phase and gamma'-phase to improve high-temperature strength and indoor temperature flexibility and plasticity.
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Description

Technical field

[0001] The invention relates to a Ti-modified NiAl-Cr(Mo) multiphase eutectic new structure intermetallic compound. Background technique

[0002] At present, in the industrial fields of power, petrochemical, transportation, especially aviation and aerospace, the metal structural materials used above 600°C are usually nickel-based, iron-based and cobalt-based superalloys. These materials have a higher density (generally at 8.0g / cm 3 Above), the components and equipment made are heavy. In order to reduce the structural weight, improve efficiency, and reduce energy consumption, it is necessary to develop new low-density, high-strength high-temperature alloys to meet the needs of future development in related industrial fields. What is more urgent is that the current high temperature alloys represented by Ni and Co bases are close to the limit temperature of their use due to the limitation of melting point. Even the third-generation superalloy single crystal with a la...

Claims

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